The Sony 16mm Fisheye Converter for FE 28mm F2 Lens (SEL057FEC) lets you broaden the focal length of your 28mm full-frame lens to a 16mm lens with 180° perspective for inclusive and distorted creativity. The converter has been specifically designed for the FE 28mm F2, and therefore offers expressive fisheye perspective with excellent image quality from infinity down to the closest focusing distance, without compromising the basic image quality of the lens.